Water Pollution MCQ (Multiple Choice Questions) PDF - 154

MCQ 766: Secondary treatment is carried out for the removal of;

1. Suspended solids
2. Dissolved organic matters
3. Floating materials
4. Solid impurities

MCQ 767: The large variety of flora and fauna on earth is known as:

1. Biodiversity
2. Diversity
3. Biome
4. Ecosystem

MCQ 768: What is the 'adiabatic lapse' rate for wet air?

1. 0.6C per 100meter
2. 0.9C per 100meter
3. 0.7C per 100meter
4. 0.5C per 100meter

MCQ 769: Air density decreases along with;

1. Latitude
2. Altitude
3. Sea level
4. Soil erosion

MCQ 770: What reduces the amount of light reaching the leaf?

1. Sulfur oxide emission
2. Carbon dioxide
3. Dust and Smog
4. Nitrogen